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Finding the Fourth Proportional to 485,519.63, 670,057.00 and 267,770.90

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Solution

The fourth proportional to 485,519.63, 670,057.00 and 267,770.90 is: 369,545.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,519.63 : 670,057.00 = 267,770.90 : x
  2. Step 2: Convert to fraction form
    485,519.63/670,057.00 = 267,770.90/x
  3. Step 3: Cross multiply
    485,519.63x = 670,057.00 × 267,770.90
  4. Step 4: Simplify right side
    485,519.63x = 179,421,767,748.30
  5. Step 5: Solve for x
    x = 179,421,767,748.30/485,519.63
  6. Step 6: Final answer
    x = 369,545.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.